Lily Clairet and the Romantic Non-Genre, Volume 1 (Paperback)

Having reached the end of her first year of high school, Lily comes across a disgruntled elementary school girl arguing with the local cherry tree, who's somehow convinced of its responsibility for the disappearance of her only hazelnut cookie. Unfortunately, it doesn't take long after investigating this dubious mystery that Lily's untroubled life soon begins unravelling around her, courtesy of the discovery of an abandoned and run-down room at the very end of her high school's music department corridor. She learns that aside from it being completely functionless and neglected, it's actually also devoid of its sole listed occupant-Sonata Sonoda, the missing journalism club president.